使用TAB在红色语言的字段之间移动 [英] Using TAB to move between fields in Red language

问题描述

我有以下简单代码:

Red []
view [
    text "Value of x:"  f1: field "" return
    text "Value of y:"  f2: field "" return
    text "Read Sum:"    tt: text ""  return
    button "Calculate" [
        tt/text: to-string ((to-integer f1/text) + (to-integer f2/text)) ]
    button "Quit" [quit]  ]

如何添加代码，以便可以使用TAB键在不同字段之间移动?显然，这适用于Rebol( http://www.rebol.com/how-to/fields.html )，但在这里不起作用.

How can I add code so that one can move between different fields using TAB key? Apparently, this works in Rebol ( http://www.rebol.com/how-to/fields.html ) but is not working here.

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